The Bizarre History of 10 Common Sayings
Now Means:
The heart of the matter. As in, "Let's get down to the nitty-gritty, home skillet."
Most say it came from ...
Nitty-Gritty has two popular origins, both of which may make you feel like a sack of shit for ever using the term.
Now Means:
An exact duplicate. As in, "That stripper's crotch is a dead ringer for your mom's."
Most say it came from ...
This origin holds that a "Dead Ringer" was a person that was prematurely buried and is supplied with a rope attached to a bell with which to draw attention to the not-so-dead guy in the totally-for-dead-people box.
One that is in a completely hopeless or useless condition.
As in, "The rule of thumb is one part tonic to four parts gin."